Filling machine



May 31, 1927. 1

H. A. MELUM ET'AL FILLING MACHINE Filed Jul {$22. 1922 4 Sheets-Sheet 1 May 31, 1927. 1,630,960

H, A. MELUM ET AL FILLING MACHINE Filed June 22 1922 4 $heet-Sheet 2 4 Sheets-Shget s FILLING MACHINE Filed' June .22- 1922 H. A. MELUM 1 Ak- May 31, 1927.

May 31.1927.- e-swam H. A. MELUM ET AK FILLING MAUI-TIRE Patented May 31, 19 27. V

M ssrArEs P T NT 0mm.

HELMEB A. MELUM, or RIVER FOREST, AND GEORGE E. BERGER, 0E OAK PARK,

3 ILLINOIS. Y f

FILLING MACHINE. f

Application filed June 22, 1922. Serial No. 570,099.

which will remove empty receptacles from a conveyor, fill the same andreturn the fille receptacles to theconveyor. I

Another object is to provide a machine wherein the splashing and dripping of the fluid is reduced to a minimum.

Another object is to provide a machine possessing accurate volume measurement especially for viscous fluids such as paint.

Another object is to provide a machine wherein the receptacles are filled while in motion therethrough.

Another object is to provide a machine wherein the liquid chamber, passages, etc., may be readily, quickly and thoroughly cleaned to prevent the mixing of liquids of different characteristics. I

Another object is to provide a machine wherein the measuring chamber is filled with fluid by gravity. 7

Another-object is to provide a machine wherein a receptacle may be filled upon each stroke of a reciprocating piston. i Another object is to provide simple an adjustable valves for limiting the flow of fluid to the measuring chamber and insuring expulsion of the fluid from the measuring chamber into a receptacle and the positive shutting off of the flow from the chamber when the receptacle is properly filled.

Anotherobject is to provide an improved control for preventing expulsion of fluid unless a receptacle is in position to receive the same.

Another ob ect is to provide a machine wherein the filling operations are stopped immediately upon an interruption due to a catch in. any part of the machinery.

Another object is to provide a machine which may be readily moved from place to place.

- Another object is to providea machine WlllChlS efficient, simple, reliable, inexpensive and of relatively lightweight. v p

Other ob ect-s and advantageswill hereinafter appear.

An embodiment ofthe invention is illus-f trated in the accompanying drawings, wherem partly in section. V

F ig. 2 is 'a section on the line 2-2 of F 1. v v

Fig; 3 is a section on Fig. 1.; I

Fig. 4 is an enlarged section on the line the I line 3 3 p of 4 4 of Fig. 6.

Fig. 5 is a section on Land Fig. 6 is anenlarged bottomplanof part of the cylinder showing the valvermechanism. 1 a

The machine has a pair of upright end frames 1 which support all of the mechanism between them. Each end frame spreads out laterally at its lower end and is provided with casters 2 whereby the machine may be readily moved about. I

A can supporting platform 3 extends between and is rigidly secured to end frames 1.. Platform 3 is somewhat T shaped in plan, as show-n most clearlyin Fig. 3. Toward the can receiving and delivering side of the machine, the upper-face of platform 8 is slightly depressed to form a pair of ledges the line 55 of Fig.

4. The shoulders 5 of ledges 4 are curved to quite closely fit about part of the circumferential edges of aepair of circular rotatable tables 6 and 7, respectively. The top surfaces of tables 6 and 7 are flush with the top surface. of platform 3 so that the Fig. l is a front elevationof the machine L cans maybe readily transferred from one to the other, as will be hereinafter described.

Tables 6 and 7 are each mounted on a shaft which is journaled in a bearing 8 forming a part of individual brackets 9. Brackets 9 are rigidlysecured to the underside of platform 3 bybolts 10. The shafts of tables 6 and 7 are each provided with a sprocket wheel 11. Platform 3- supports a journal mounting for an idler sprocket wheel 12. A

chain 13 interconnects sprocket wheels 1.1 and 1.2 and a driving sprocket wheel 14- so that counter-clockwise rotation of the driving sprocket wheel rotates tables 6 and 7 in a clockwise direction as indicated'by the arrows. r

The can filling and moving mechanism is operated through an upright, rotatable and axially adjustable shaft 17. Shaft 17 is braced and journaledby a bearing 18 which is bolted to the underside of'platfornr 3 by bolts 19.v The shaft provided with a splinev 20 and a threadedsection '21. An

, adjusting hand wheel 22engages threads 21 andis rotatable relative to the shaft. Hand Wheel 2 27 rests upon the top" of a rotatable sleeve 23jwhich is sup'ported on the top of a: hollow boss or pedestal 2st: Pedestal 2st may be formed as an integral part of a cross beam 25 which extends between and is rigidly secured to end frames'l.

Beam 25 is constructed to form the lower section of a clutch housing which is closed by a cover'26. The cover and base of the housing are secured together by boltsas shown. .Beam 25 carries a motor 26' which is .belted'to a worm 27 located within and journaled by the clutch housing. 0111127 engages a worm wheel 28 which is'rotatably and slidably mounted on sleeve'23. Sleeve 23 is featheredto shaft 17 so that the shaft may move axially therethrough and be turned thereby. ()ne side of worm wheel 28 is countersunk and-surfaced to form one element of a clutch. The other element of the clutch is a flange 29 on the lower end of sleeve 23. A somewhat conical pressure plate 30 bears downwardly upon worm wheel 28 under the force of a spring 31. I A

nut 32, which engages threads on sleeve23 and may be adjusted up and down thereon,

serves to regulate'the friction between the clutch elements. Motor 26 drives worm 27 and worm wheel 28 and normally the friction between the clutch elements will cause the rotation of sleeve 23 and shaft 17. However. in the event of tin-excessive load on 1 so as to be rotated thereby'but allow the shaft to be axially moved therethrough. It

is supported above platform 3 by bearing 18. Actuator 33 is adapted to receive a can driving plate 3 1 which has two curved camlike edges, as most clearly shown in Fig. 8, which alternately partly fit about the cans carried thereto by table 6, move the cans in a circle on platform 3 and deliver the same I to table '7. Actuator 33 has three pins 36 projecting from its upper surface. Can driving plate 34 has three openings for fitting over these pins and is clamped'in posi' tion by a threaded handwheel nut 87. V For dili'erent sized cans driving plates with position on actuator 'Acurved rail 35, ad ust-ably bolted to the top of platform 8, keeps the cans in proper position t iey are 'removed fron'i-a-conveyor, carried around on the p atform by actuator 33 and returned to a conveyor. The can filling mechanism is primarily supported'on' the end offshaft 17.

This

larger or smaller curves may be clamped in mechanism has a metal cylinder 40 whose wall has a socket A1 fittingupon the top of shaft 17 Shaft- 17 and cylinder d0 are keyed together so thatthe cylinder is rotated when the shaft turns. Cylinder 40 has a pair of inlet passages l2 and et3 \vl1iclrcon1- 'municate witha supply pipe 44; -Pipelet leads from a paint tank and slidably lits within a flange 45 of'cylinder 40. A packing box 4:6 prevents leakage but allows the flange to be moved axially relative to the supply pipe. I I

The ends of cylinder to are closed by suitable metal heads 47. Cylinder 40 has a number of clamping screws d8 pivotally mounted on lugs located adjacent its opposite ends. The heads have corresponding slotted lugs for receiving screws a8, and wing nuts 19, threading uponthe screws clampthe heads in place. The heads may have other lugs which have holes therein for receiving centering. pins 51'which project from the cylinder. v

-Gylinder heads have inlet ports 52 and 53 cored therein for continuing inlet passages a2 and 48, respectively. ends of ports 52 and53 are adapted to be closed by valves and 5'5, respectively. The valves pass through suitablepackirig boxes in the'heads. Each valve is biased tb closed position by a coil spring 56; Valves 54c'and 55 are opened by levers 57 and 58, respectively, as will be hereinafter described. The distance the valves are opened may be regulated by screws 59 which are adjustably carried in the endsof levers 57 and 58. The adjustment is maintained by lock nuts 60. 'i

ppositc cylinder heads i-7' are cored to provide outlet ports 62 and (53. respectively. Outlet ports 62 and (idare adapted to be closed by cutoff valves'dfl-and 65, respectively. Each cut off valve seats and slides upon an adjustable .disc (56, which is pro.

vided witha number of different size openlngs G7,and s tightly but adjustably clamped against a surfaced seat on the correspond The lower ing cylinder head. Disc 66 is heldagainst lateral movement by a pin 68 extending into a hole in cylinder '40. It may be rotated uponpin 68 to cause any one of its openings 67 to register withthe outlet port.

of holes for receiving pins on the valve plate to prevent the plate from turning. Arms 69 of the corresponding valves 64 and 65 are pivoted to arms 70 and 71 of bell crank levers 72 and 73, respectively. Levers 72 and 73 are journaled in brackets74 and 75 which are respectivelyboltedto opposite cylinder heads. These levers are therefore rotated bodily with the cylinder. The valves are held biased against their seats by springs 76. Valves 64 and 65 are opened and closed alternately by the movement of inafter described.

Cylinder 40 has a reciprocating piston 81 therein. Piston 81 may be composed of two bell crank levers '72 and as will be here similar piston heads into which are screwed a pair of piston rods 82 and 83. Piston rods 82 and 83 pass through packing boxes in opposite cylinder heads and are bolted into'sockets in similar yokes 84 and 85.

, Yokes 84 and 85 also have guide rods 86 extending therebetween and bolted or etherwise secured thereto. through holes in bosses 87 in bothcylinder heads and assist in holding the piston heads in propel-position.

Yokes 84 and 85 carry rollers 88 and 89 respectively. These rollers bear against the outer circumferential surface of a piston operating ring 90. Ring 90 is of L shaped cross section and is adjustably carried by bars 91. Bars 91 are bolted to the upper legs of brackets 92 which are slidably car ried in guideways in the two end framesl. Bars 91 are slotted and ring 90 is bolted thereto by threaded hand wheel bolts 93 and plates 94. An adjusting screw 95 threads through ring .90 and is provided with an adj'usting hand wheel 96. Ring 90 is positioned eccentrically of the axis about which cylinder 40 rotates under the drive of shaft 17. Therefore, as the cylinder and yokes 84 85 and rollers 8889 carried thereby are rotated, the rollers travel around the surface of eccentric ring 90 and piston 81 is reciprocated Within the rotating cylinder.

The length of the strokes of piston 81- depends upon the eccentricity of ring 90 and this may be varied by loosening bolts 93 and turning hand wheel 96.

The filling mechanism is under the control of the cans to be filled so that, if there is not a can in filling position, the cylinder does not discharge. Both the inlet and outlet valves are controlled by the cans. Inlet valve 54 and outlet valve. 64 are actuated by the movement of bell crank lever 72.

Each valvecomprises a plate supported on the end of a pivoted arm 69. Leverfit) has'apan' Rods 86 slidably fit Similarly inlet valve 55 and outlet valve 65 are actuated by the movement of bell crank lever 73. 1 1

Brackets 92 have a stationary valve con-' trolling ring bolted thereto. Ring 100 is made in two sections which are independently secured to brackets '92 by bolts l0l.-."Tlie sectioning of this ring permits the independent removal of either cylinder headand the mechanism carried thereby. Arms 102 and 103 of correspondingbell crank levers 72 and are provided with rollers 104 and 105, respectively, at their outer ends. hen the cylinder rotates, rollers 104 and 105 are adapted to travel either entirely on theouter. circumferential surface of stationary. ring 100 or partly'on the outside and partly-on the inside thereof depending uponwhtether or not-cans arebeing delivered to the machine. Smallsections of thefroller engag ing surface offring 100 are pivotally mount ed to form'an entrance gate 100 andan exit gate 107 for rollers 104 and 105. Gate 106 is hinged .to the relatively rigid part of ring 100 by a pivot 108 mitigate-.107 is sii'nilarly hinged by a pivot 109. When gates 106 and 107 are swungo'utwardly into open position, as shown in Figs. 3 and 5, rollers 104'and 105, moving in ananti-cloekwise direction about the axis of shaft 17 and cylinder. 40, travel on the outside of ring 100 from gate 107 to gate 106. At gate 106, the same being open, the rollers are 100 to present a practically unbroken outerv surface to the rollers and the rollers remain upon the outside."

lVhen roller 104, for example, is switched from the outside to the inside of, ring 100 at gate 106 bell crank lever 72 is rocked. The rotation of bell crank lever 72 through its arm 70 and lever 57 closes inlet valve 54 and opens outlet valve 64. These operations are so timed, relative to the rotation of cylinder I 40. that piston 81 is on the point of beginning its stroke from right to left, as most clearly shown in Figs. 1 and 5, when valve I 54 closes and valve 64 opens. As the cyl" inder continues to rotate, carrying roller 104 from gate 106 to cam 110 inside of the circle, the inlet and outlet valves'are held closed and open, respectively. and piston 81 c0ntinues its stroke, forcing the paintfout of the left hand chamber of. the cylinder and through port 62 into the can therebelow.

During this part of the cycle of operations pivot 116 against roller 105 istravelling on the outside 0t ring 100 between gates 107 and 106 and inlet valve vis held open by lever 58 and outlet valve is held'closed by lever 71. 'The movement of the piston provides a chamber,

inthe right hand endjot' cylinder 40 which chamber is filled by the gravity impelled flow of paint throughpassage'43 and port hen roller 104 reaches cam'110 and is thereby switched to the outside of vrmg 100 bell crank lever 72 1S moved in the reverse direction. This reverse movement of lever r- V v l. (2 closes outlet valve 64, which closes outlet port 62 and. cuts oll the stream of paint.

The movement of lever 72 alsoxcauses the' outer end of lever 57 to move inwardly to open valve 54.

During the remainder oi? the cycle. repre' sented by one complete revolution of cylin der 40., piston 81 travels from leiit to right.- Since inlet valve 54 is then open and outlet valve 64 is closed the chamber in the left end of cylinder .40 (created by the piston. moving from left to right) is gravity port 52. While the left hand chamber thus filling roller 105 having been switched by gate 106 to the inside of ring 100. valves 55 and 65 are respectively closed and opened.

The right hand chamber is tliereaitereX- hausted by the left to right movement of the piston while the left hand chamber is filling.

In the event that cans are not delivered to the machine gate 106 remains closed and rollers 104 and 105 remain on the outside of ring 100. The rollers are confined to the outside of the ring because gate 107 is closed also. A lever 115 is hinged to rail 35 by a pivot 116. V rearvvardly projecting lug 118 on lever 115 and toa lug 119. Lug 119 on an extension 120 of rail 85. The normal position of when a can rotates lever 115, as hereinbefore described, lever 122 is also rotated and gate 106 is opened with the result previously set N forth.

In the event that cans are not receivedlever 115 is not moved outwardly and gate 106remams closed. Thereupon until a can is received cooperate lever 11;), rollers 104 and 105 are confined to the outside of ring 100, both inlet valves 54 and 55 areheld,

open by levers 57 and 58 and both outlet valves 64 and 65 are held closed by levers till edv with paint flowing through passage 42 and A spring 117 is connected to a' 'TO'and 71. In this condition the reciprocation of piston81 merely alternately forces;

the paint. back-through ports 52 and '53andl allows thechambers formed inthe opposite ends of the cylinder to fill. But no'paint is allowed to escape through" ports 62 and 63- until cans-are again fed'tothe machine.

This action is of importance when the ma chine is to, be used on'va'rious characterso't ')aints in. succession. A suitable-cleaning fluid may be emptied into the cylinder through pipe 44. whereupon if .no cans are lied to the machine, the reciprocation ofpiston 81 will force the cleaning flu d back andtorth through the passages and chain: here. After the walls are thoroughly cleaned the fluid may be run outof the outlet valves and the machine will be ready for use. Thus, with little trouble and loss of time; the machine mayjbe used'in quick succession on paints which for one reason or another should not be intermingled.

In order to adjust the machine for differ I .entheights of cans, hand wheel 22 is rotated to raise and lower cylinder 40 and the valve mechanism associated therewith. To adjust the machine for cans of different.capac1t1es,' the eccentricity of ring 901s varied to change the length ofstroke of piston 81 and thus vary the volume discharged from the cham bers formed oneach side-thereof. I

The machine may be employed in connection with an automatic c.0nveyor,,suchas an endless belt conveyor 125. Guiding rails 126, for guiding the cans to and from. the conveyor may be carried by conveyor 125.

The castors permitthe machine to be readily moved about and placed in operative" relation to the conveyor at any point. v 7 Briefly summarized, the: operation of the machine is as follows: 1 I

Empty cans are delivered by belt 125 to the receiving sideoii the machine. rails 126 switchthe empty cans from belt 125 to revolving table 6. Table 6 carries the cans into position to be grasped by the curved ndriving 7 plate on actuator 33 which. slides the cans, in proper spaced relation,- around on platform 3 until they reach revolving table 7. Table 7 delivers the filled cans to conveyor 125. V 7

While the cans are being moved by., act u-- Guide ator 33 adjacent ones are filled by paint eX.-

pressed from chan'ibers formed in opposite ends of cylinder 40. by the reciprocation of piston 81. Cylinder 40 is continuously ro- -tatedby motor. 26and rollers 88 and 89 'inlet and outlet valves are respectively opened and closed; Should the delivery ofcans to the machine cease, gate 106 is not opened 'and the inlet. valves remain open and the outlet valves remain closed. The blade-like outlet valves cut off the flow and the wear thereon is compensated for by their springs which always maintain the same tightly against their seats. Should the machinebecome clogged for any. reason the extraload produced thereby causes clutch 2829 to slip and no damage will be done to the machine. I i I I v The fact'that, when the filling operation has been started, air is practically excluded from the measuring chamber and passages lessens the tendency to splash when the outlet valves are opened. The plunger exhaustion of the measuring chambers insures accurate volume discharge of even extremely viscous liquidsf The relatively tight fit between piston and cylinder walls insures that all of the fluid is expelled quickly so that the full volume is emptied into the cans. I

Having described our invention what we claimas new and desire to secure by Letters Patent, is l 1. A filling machine having a platform for supporting receptacles to be filled, an actuator for moving receptacles in a curved path .overthe platform, a liquid measuring cylinder having an inlet valve and an outlet valve adjacent each end, a piston adapted to reciprocate within the cylinder, means for rotating the cylinder and the actuator, and mechanism whereby the rotationof the cylinder reciprocatesthe pistonand alternately Y operates the valves at opposite ends of the cylinder. I I

2. A filling machinehaving a cylinder for connection to a source-of liquid supply, a piston movable in opposite directions within the cylinder, an inlet valve at each end of the cylinder for controlling communication to the cylinder, an outlet valve at each end of the cylinder and controlling communication therefrom, an actuator for positioning receptacles beneath the outlet valves, means for reciprocating the piston, and means for controlling the valves at opposite ends of the cylinder alternately so that fluid is received by and expressed from the cylinder on each stroke of the piston. I

3. A filling machine having a cylinder for connection to a source of liquid supply, a piston movable in oppositedirections within the cylinder, an inlet valve at each end of the cylinder and for controlling commun h cation to the cylinder, an outlet valve. at each end of'the cylinder and control ling' communication therefrom, an actuator for positioning receptacles beneath the outlet valves,- means for reciprocating the p iston,lmeans for controlling the valves at oppositeends of the cylinder alternately fso that fluid is received by andexpressed froi'njthe'cylinderon each (stroke of the piston, and control means under the control of receptacles for stopping the operation of theval'ves' as 'long as receptaclesarenot delivered to the machine; i

LA filling machine having @a fcylindei' rotatable about an axissubstantially perpendicular to itslength' and for interconnection with a. source of l quid supply, an inlet valve and an outlet valve at each end of the cylinder, a piston inovablein' opposite direc-' tions within the cylin der, a relatively staaxis'of rota-tion ofthe cylinder, means carried by the cylinder and cooperating with the ring toreciprocate the piston, a second ii-lug, and means cooperating with the second ring for controlling the valves at opposite ends of the cylinder. during a complete reciprocation of the piston.

6. A filling machine having a platform for supporting receptacles to be filled, a rotating table for deliveringreceptacles to the platform, an actuator for moving the receptacles over the platform, a rotatable cylinder, a piston adapted to "reciprocate therein, an inlet and an outlet valve at each end of the cylinder, means for reciprocatin the piston, mechanism forsuccessively c osingand opening the valves at op posite ends of the cylinder during a complete reciprocation ofthe piston, and a controller influenced by the presence and absence of a receptacle in the machine and controlling the operation of said mechanism.

/ i l. A filling machine having a rotatable cylinder, a piston adapted to reciprocate therein, an inlet and an outlet valve at each end of the cylinder, a normally stationary ring, a pivoted gate in the ring, means rotatable with the cylinder and bearing on the I outside of the ring during an entirerevo partly on the outside and partly on the inside of the ring'wlien the gate is open, a cam for switching said means from the insideto 'tionaryring mounted eccentric'ally of the 'lution when the gateis closed and bearing Y theoutside of the ring, and mechanism affectedby the switching of said means. from thefoutside to the inside and from the inside to the outside of the ring and cooperating i'tli'the valves'to' control the same alter nately at opposite ends oft-he cylinder.

8.1%, filling machine having a frame-,1 a substantially vertical shaft rotatably sup- ;ported by the frame, a cylinder'rigidly car ried by theshaft, a piston movable in topp0- site directions within the cylinder, means for reciprocating the piston while the same and the cylinder are rotating withthe shaft, an inlet andan outlet valve at'each end of the cylinder, valve actuating mechanism rotatable with the cylinder, and a'control device for causing said mechanism to afiect the valves at opposite nately; 7

- 9.,Afilling machine having a rotatable .cylinder, a piston adapted to. reciprocate V partly on the outside and partly on the in therein, an inlet and an outlet valve'at each end of thecylinder, a relatively stationary ring, a pivoted gate inthe ring, means rotatiab'le with the cylmderand bearmg on the- OllllSldG of the ring durmg an entire revolution when the gate is closed and bearing 10. In a filling machine the combination of a platform for supporting receptacles to be filled, a rotatablyand axially adjustable shaft passing through the platforn'i, an ac tuator driven by the shaft anda'cting to move receptacles over the platform, cylin dcr mounted on the shaft to rotate therewith and movable thereby to different posi 1 tions abovethe olatform to adust the same for different height receptacles, a piston mounted in the cylinder, operative connections to reciprocate the piston upon thero tation of the shaft, an inlet valve and an outlet valve at each end of the cylinder, and valve operating mechanism for opening and closing the inlet and outlet valves at oppo; site ends of the cylinder alternately.

1.1. A filling machine having a platform for supporting receptacles to befilled, a rotatable and axially adjustable shaft .passing through the platform, an actuator oriven by the; shaft and acting to move receptacles overthe platform, a liquid measuring cylinder mounted on the shaft to rotate therewith and movable thereby to different posiions above the platform to accommodate ends of the cylinder alterring, mechanism afiiected headset different size receptacles, a piston in the cyl nder, means for causingv the rotation of the shaft and cylinder to reciprocate the piston, an inlet valve'and outlet valve at each-end of the cylinder,'-valve controlling mechanism for opening ,and closing'the' valves at opposite ends of the; cylinder gal;-

ternately, and receptacle controlled means for governing theoperation of the valve controlling mechanism. Q12. A filling machine I for supporting receptacles to be filled, a

having a platform rotatable and axially adjustable shatter-- tending through the platform, a cylinder carried by and rotatable with" 't-heshaft, a piston Withinthe cylinder, adjustable p'i:- ton reciprocating means for moving the pis ton in the cylinder according'to volume ie quired, aninlet and'an outlet valve at each end of the cylinder, valve mechanism for actuating the valves at'opposite ends of the cylinder alternately, and an actuator operated by the shaft and adapted to move rev ceptacles over theplatforin under the outlet valves.

18. A filling machine having a platform for supporting receptacles to be filled, a rotatable and axially adjustable shaft eX- tending through the platform, a cylinder carried by and rotatable with the shaft, a

piston'vvithin thecylinder, adjustable piston'reciprocating means for moving the piston in the cylinder according to volume re:- quired, an inletand an outlet valve 'at each end of. thecylinder, valve mechanism for actuating the valves at opposite ends of-the cylinder alternately, an actuator operated llli) by the shaft and adapted to move recep tacles over the platform under the outlet valves, and receptacle controlled means for holding both inlet valves open and both outlet valves closedwhe'n receptacles are not in the machine. Y r

ll. A filling machine having a platform for supportingreceptacles to be filled,ro-

rating tables for delivering receptacles to and from the platform, a rotatable and axially adjustable shaft extending through I the platform and driving the tables, a cylinder carried by and movable with the shaft, a piston in the cylinder, mechanism for moving the piston, means for varying.

the reciprocation of the piston according tofvolume of material required, an outlet" valve at each end of the cylinder, valve mechanism for alternately" actuating :the valves to close and openchambers formed by the reciprocation ofth'e piston, in the cylinder, and an actuator for moving receptacles over the platform and between the tables.

. iii/A filling machine havinga substan tially vertical shaft rotatable and axially adjustable, a cylinder rotatable and axially adjustable Withthe'shaft, a piston in the cylinder, means for reciprocating the piston during-rotation of the cylinder to form chambers on oppositesides thereof, and receptacle controlled valve mechanism for controlling the filling of the chambers.

16. In a filling machine the combination of a horizontally rotatable measuringcylincler adapted to be connected to a source of liquid supply, a piston mounted to reciprocate in the cylinder to alternately provide measuring chambers in opposite ends of the cylinder, means for reciprocating. the piston during rotation of the cylinder, valves at each end of the cylinder to control the liquid flow to and from the chambers, valve operating mechanism to automatically actuate the valves at the ends of vthe'piston strokes, and an actuator for causing receptacles to move in unison with the cylinder.

- 1'7 A filling machine having a cylinder for connection to a source of liquid supply, a piston mounted to reciprocate in the cylinder, adjustable driving means for reciprocating the piston through different lengths of stroke to form chambers of variable capacity at opposite ends of the cylinder and to eject the liquid therefrom, valves to control the flow of liquid to and from the chain bers, valve operating mechanism for actuating the valves in alternation, and means in position to be engaged by receptacles to be filled and affected differently by the presence and absence of such receptacles and cooperating with the valve operating mechanism to permit and prevent the flow of liquid from the chamber.

18. A filling machine having a cylinder for connection to a source of liquid supply, a platform for supporting receptacles in filling position beneath the cylinder, a piston mounted to reciprocate within the cylinder to form measuring chambers alternately at opposite ends of the cylinder and to eject the liquid therefrom, adjustable driving means for reciprocating the piston through different lengths of stroke to vary the amount of fluid ejected, valves to control the flow of liquid to and from each chamber, valve operating mechanism for actuating the valves alternately, and receptacle controlled means for stopping and permitting the operation of said mechanism. 7

19. A filling machine having a platform for supporting receptacles to be filled, a cylinder mounted to rotate above the platform, a piston, means for reciprocating the piston Within the cylinder and thus'form measuring chambers on opposite sides of the piston, a liquid inlet valve at each end of the cylinder, a liquid outlet valve at each end of the cylinder, an actuator for moving receptacles along with the cylinder below the outlet valves thereof, and valve actuating mechanism for alternately operating the valves in pairs to alternately permit the filling and the cylinder alternately, an actuator adapted to move receptacles over the platform under said outlet valves, and receptacle-controlled means for holding both inlet valves open'and both outlet valves closed When'the receptacles are not in the machine. j I j 21. In a filling machine the combination of a rotatable cylinder, a piston in the cylinder, means for reciprocating the pistonduring' the rotation of the cylinder to form measuring chambersalternately onzopposite I v sides of the piston, means for movinggreceptacles along with the cylinder, valves for controlling the flow of a fluid from the chambers on opposite sides of the pistons,'f

and receptacle controlled mechanism for'controlling thevalves. w

"A filling machine comprising a rotat able cylinder, a piston adapted to reciprocate therein, an outlet valve at each'end of the cylinder, a ring, and valve-controlling" mechanism rotatable-with said cylinder and co-operating with said ring to alternately close and open said outlet valves.

23. A filling machine comprising a receptacle support, a horizontally rotatable fluid measuring cylinder having an outlet at each end, a valve for each outlet, a piston mounted to reciprocate in the cylinder to alternately drive liquid through opposite outlets while the cylinder is rotating, mechanism for driving the piston, means for maintaining a receptacle in filling positions relative to one of the outlets of the cylinder, and valve actuating mechanism for opening a valve when a receptacle isin filling position.

24. In a filling machine the combination I of a cylinder rotatable in a horizontal plane and having an inlet and an outlet adjacent each end, a piston mounted to reciprocate within the cylinder to form measuring chambers on opposite sides of the means associated with the cylinder to effect the reciprocation of the piston when the cylinder is rotated, valves for controlling the flow of liquid to and. from each chamber and means for moving receptacles in unison with the cylinder below the outlets thereof.

25. In a filling machine the combination of a cylindervmounted to rotate on a fixed axis at right anglesto its bore, a piston in the cylinder,a stationary ring mounted ec- 'centrically of the axis of rotation of the cyl inder, means co-operating with the piston piston, V

and the ring to reciprocate the piston when the cylinder rotates, and means for rotating the cylinder. I

26. A filling machine having a platform for holding receptacles to be filled, an actu- V iator for moving the receptacles in acurved path over the platform, a rotatablecylinder,

at right angles to its bore, an outlet port and valve adjacent each end of the cylinder,

' a pistonmounted toreciprocate withinthe cylinderand provide measuringchambers in opposite ends thereoha stationary ring eccentric to the axis of rotation of the cylinder, 'meanscobperating with the piston and the ring to reciprocate the piston when the cylin- 7 der rotates,'a second ring, valve mechanism co-operatrng with the inlet and outlet valves and the *ing to control the valves Whenthe cylinder rotates, and driving means for roe tatlng the cylinder. v

28; In a filling machine the combination of a horizontallydisposed cylinderrotatable about a vertical axis, a piston for the cylin der, means for rotating the cylinder about f the vertical axis, means-for reciprocating the piston during the rotation oiithe cylinder to alternately increase and decrease: the chambers Within the cylinder on opposite sides of the piston, inlet and outlet valves for each chamber, valve mechanism for alternately operating thevalves' for the ciambers, and receptacle moving mechanism for carrying receptacles in step with 'the'icylinder andbelow the outlet vaives'thereof.

In testimony whereof We'hereunto set our hands. '7 v HELMER A; MELUM.

GEORGE P; BERGER f;

Patent No. 1,630,960.

Certificate of Correction.

Granted MayBl, 1927, to HELMER A. MELUM ET AL.

It is hereby certified that error appears in the printed specification of the abovenumbered patent requiring correction as follows: Page 7 line 36, claim 17, for the Word chamber rea-d chambers and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 21st day of June, A. D. 1927.

[SEAL-.1 M. J. MOORE, Acting Commissioner of Patents. 

